Improvement in heating-stoves



IY. N. ROSS.

Maga zine Stove. No. 84,511. 'l Patented Dec. 1, 1868.

. Y@ Q niet gdm-texi www wwaeaaaeww @than www )eide ISAAC N. ROSS, OF WORCESTER, MASSACHSETTS.

Lette/ifs Patent No. 84,511, (lated Decembfn` 1, 1868. v

IMPROVEMENT IN HEATING-STOVES.

The Schedule referred to in these Letters Patent and making part of the same.

To all persons vto whom these presents may'come:

Be it known that I, ISAAC N. Ross, of the city and county of Worcester, and State of Massachusetts, have invented a new and useful Improvement in Magazine- Stoves; and do hereby declare the same to be fully described in the following specification, and represented in the, accompanying drawings, of which- Figure 1 is a vertical and longitudinal section, and

Figure 2, a horizontal section of a stove provided with my invention, the plane of section of the latter iigure being through the air-discharging annuli of the magazine and fire-pot.

The naturqof my invention consists in the arrangement and combination of an air-discharging annulus, and its air-duct, with the magazine and the fire-pot.

Also, the arrangement and combination ofthe same, and another such annulus and air-duct, applied to the upper part ofthe nre-pot.

Also, in the combination of an annular' air-chamber, having a foraminous fire-proof lining or side, with the e-pot,.and the hollow annulus applied thereto, as hereinafter explained.

Also, in the arrangement of an air-opening and register-valve at the top or in the cover of the magazine.

In the drawings, A denotes the outer case of the stove.

Between the said case land the lire-pot B, arranged concentrically within it is a smoke-passage, C, which leads into a chamber D, surrounding the ashchamber E, land being provided with a projecting educt, F.

'Ihe grate G, placed within the lower part of the lire-pot, is pivoted to the middle of a shaft, H, and is provided with an arm, a, to extend from it through a slide, b, applied to an opening in the front of the case.

Over the fire-pot, and leading down from the top of the case, is the magazine I, which, at itstop, is provided with a cover, K. This cover has a hole, c, through it, ard it also has a valve or turning-plate, d, so pivoted to it as tovenable a person, by means of such valve, to either entirely or partially close. the hole c,

as circumstances may require.

vThis magazine, likev that of various other stoves, is to hold a supply of coal or fuel, and allow the same to fall down, from time tol time, into the fire-pot. The removal of the cover' admits of the magazine being charged with fuel. The hole c, and its valve or regis# ter, are for the purpose' of admitting'air to flow down through the fuel, and regulate the quantity of such,

air, in order to supply the central portion ofthe lower part ofthe mass with oxygen, as circumstances may require'. This is a matter' of much importance in a magazine-stove.

To the lower extremity of-the magazine, which isstove down to and opens into the annulus L. At its upper extremity the pipe M opens through the top of the case, and is there provided with a cover, f, which is pivotedto the said top.

Furthermore, there is fixed to the top of the firepot another hollow annulus, N, which is arranged concentrically with respect to the annulus L, and has an air-induction pipe, O, leading into it, such pipe being provided at its outer end with a register-cover, g.

The inner side ofthe annulus N is perforated with a series of holes, h, to discharge air` into a space or annular chamber, P, which is concentric with the an; nulus N, and has its inner side composedof a ring, R, of foraminous fire-brick or its equivalent.

Another air-pipe, K', leads from the rear part of the case,`through the annulus N, the chamber P, and its fora'rninous fire-proof side, R, the said pipe K being .provided at its outer end with a cover, l, which is piv-V oted to the case. Y

When the stove is in operation, numerous jets of air will be discharged from' both the annuli'A L N, and will' pass into the air upon the fuel of the firepot, so as to facilitate the' combustion of it and thev gaseous products evolved from it.l As the alne will, rush in radial directions away from the annulus N, owing to the air discharged from it, and also to the eii'ectof the draught on the flame,- the annulus and its air-supply pipe become not only means of protecting the lower end of the magazine from being destroyed or injured by the heat of the lire, but of supplying the flame and fuel withv oxygen, whereby the combustion of the fuel, and the smoke and gas evolved from it, will be greatly promoted.

The annulus L not only adds strength, but alsoin an Argand gas-burner; and, furthermore, thecurrents of the two annuli so impinge on thc flame as to forceit high up into that part of the stove which surrounds the magazine, thereby causing that part to be heated to better advantage than it would without the outer annulus. i

The annular chamber, made with a foraminous ireproof inner side, operates to prevent the destruction of the annulus N, by the great heat of the iiame, particularly when the air is cut off from the annulus N.

I am aware that in the st ove patented to David B. Cox, December '19, 1865, the magazine is combined with an annulus surrounding its lower end, and airsupply pipes leading from the top of. thestove, and I make no broad claim t0 any such arrangement.

' But in the stove referred to the annulus is perforated on the side, so that the air issuing therefrom is not `discharged in the direction of the iirle, but is carried at once upwards by the draught of' the stove, Without mixing to any considerable extent with the gases evolved, an'd consequently without producing their combustion.

On the contrary, I'forrn the perforations in the bottom ofthe annulus, so that the air discharged is brought in direct contact with the tire, mixing intimately with the rising gases at the point where they are more highly heated, and thus inducing much more perfect combustion than in the other instance. l

What I claim, therefore, and desire to secure by Letters Patent, is as follows:

In a stove, in which the magazine is arranged with relation to the lfire-pot, and combined with an annulus surrounding its lower end, and one or more air-supply pipes, leading from the top ofl the store as described, I claim the formation of the air-discharge apertures or perforations in the bottom, in contradistinotion to the sides, of said annulus, substantially in the manner and for the purposes shown and set forth.

I also claim the combination and arrangement of the auxiliary' annulus N, and its air-supply pipe, and discharge-holes, with the fire-pot, the. magazine, and the annulus L, and its air-supply pipe and dischargeholes, the whole being in the case as specified.

I also claim the combination of the inner annular airchamber P, and its toraminous fire-proof side, R, with the fire-pot and the hollow annulus L applied thereto, as and for the purpose specied.

,ISAAC N. ROSS.

Witnesses R. H. Emu, F. P. HALE, Jr. 

